Pehcil-poiht protector



A. W GRAHAM.

PENCIL POINT PROTECTOR.

APPLICATION FILED NOV. 23, 1915.

1 1 93,377 Patented Aug. 1,1916.

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ANDREW W. GRAHAM, 0F BUFFALO, NEW YORK.

PENCIL-POINT rno'rno'ron.

Application filed November 23, 1915.

To all whom it may concern:

Be it known that I, ANDREW W. GRAHAM, a citizen of the United States of America, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Pencil- Point Protectors, of which the following is a specification.

This invention relates to pencil attachments and has special reference to a pencil point protector designed to always remain on the pencil when the pencil is in use for writing, or being carried in the pocket.

The principal object of the invention is to provide a one piece point protector which by a slight rotary motion of either the protector or the pencil it will uncover or cover the point of the pencil.

Another object of the invention is the provision of a one piece point protector capable of being produced at a very low cost and which does not require removal from the pencil when the latter is to be used.

With the above and other objects in view, as will be hereinafter apparent, the invention consists in general of certain novel features of construction hereinafter described, illustrated in the accompanying drawings and set forth in the claims.

In the accompanying drawings like characters of reference indicate like parts in the several views, and ;Figure 1 is a side elevation of the device as applied to around pencil. Fig. 2 is a side elevation of the device but applied to a hexagonal pencil. Fig. 3 is a central longitudinal section through the device. Fig. i is a section similar to Fig. 3 but showing a modified form of the device. Fig. 5 is a vertical section taken on the line 5-5 of Fig. 1.

In the embodiments of the device herein illustrated, and which are capable of variations in minor details I provide a cylindrical body part 10 having a slit 11 extending longitudinally from one end to a point adjacent the other end of such body where it terminates in a hole or opening 12.

Integrally formed at the other end of the body is a frusto-conical nose 13 open at its smaller end as shown at 14k so that the pencil Specification of Letters Patent.

Patented Aug. 1, 1916.

Serial No. 62,997.

point may protrude through the opening when it is desired to use the pencil for writing.

This protector is of such size as to snugly fit a pencil and in order to provide for movement longitudinally of the pencil as the pencil is rotated the part of the cylindrical barrel or shank 10 opposite the slit 11 is provided with diagonal or spiral means frictionally engaging the pencil as the same is rotated. I

In the form shown in Figs. 1, 2 and 3 this means is indicated as being made by cutting a kerf 15 in the barrel or shank part 10 and bending down the edges as at 16 so when the pencil is rotated they will frictionally engage the same.

Other forms may he used as in Fig. 4 Where the friction engaging means is shown in the form of a slanting depression forming a rib 17 which is simply struck in the metal barrel similar to a screw thread.

The operation of the device is as follows :Hold the protector with the left hand thumb and finger, holding the protector stationary and hold the pencil with the right hand, turn or rotate the pencil slightly from you and it allows the point to protrude in a position for writing, by reversing the motion of the hand it brings the pencil within the protector which always remains on the pencil.

it is obvious that minor changes may be made in the form of the invention without departing from the principles thereof. It is not, therefore, desired to confine the invention to the exact forms herein shown and described but it is wished to include all such as come within the scope of the claims.

Having thus described my invention, what is claimed as new and is desired to be secured by Letters Patent is 1. A pencil point protector comprising a. cylindrical body portion slit from one end to a point adjacent the other end and provided with a diagonal inwardly extending rib opposite the slit, and a f'rusto-conical nose extending integrally from the last mentioned end of the body and having its extremity open.

2. A pencil point protector comprising a pose of Writing said body, nose and rib all 13 cylindrical body portion, slit from one end being formed from sheet metal. to a point adjacent the other end and pro- 7 In testimony whereof I my signature vided with a diagonal inwardly extending in the presence oftWo Witnesses.

friction rib opposite the slit and a frustoconical nose extending integially from'the ANDREW GRAHAM last mentioned end of the body and having Witnesses: its extremity open to permit the point of a I V. G. FRONAPPEL; pencil to protrude therefrom for-the pur- I. G. BRooKs.

five cents each, by addressing the Commissioner of Patents,

Copies of this patent may be obtained for 7 Washington, D. C. 

